10,000,000
1,000×10,000
We break the numbers down individually. Then multiply everything together.
1000 = 10×10×10
10,000 = 10×10×10×10
1,000×10,000 = 10×10×10 × 10×10×10×10
The 10 is in 7 places:
1,000×10,000 = 10,000,000
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